Calculation of Damper Winding Loss and Influence on Large Hydro-generator Temperature
In this paper, the 250MW generator in Wuqiangxi power station is studied. The solved region and mathematical model are given and the additional losses of the rotor pole surface and damper windings under rated voltage and no-load were calculated by the time stepping finite element method. Two situations are considered for calculating the additional loss of the damper windings. One is that the additional losses of the damper winding and pole surface are distributed in the certain penetration depth. The other is that the two kinds of losses are considered respectively. Based on that, the half-axial section mathematical model of 3D temperature Held of the hydro-generator is established and calculated. Then, some useful conclusions are gotten through the analysis of temperature distribution under two situations.
hydro-generator damper winding electromagnetic field additional loss temperarture
Huo Feiyang Li Weili Zhang Yu
Beijing Jiaotong University BJTU Beijing, China, 100044 Harbin University of Science and Technology HUST Harbin, China, 150080
国际会议
太原
英文
365-369
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）